The document discusses using enums in Swift to define a type for analytics events with different possible cases. It describes creating an AnalyticsEvent enum with cases for different event types, and properties to store associated data for each case. Struct properties can be used to store common data across all cases. Enum cases can also have associated values to store additional type-specific data. Indirect cases allow extending the enum to support new cases without modifying the original definition.
12. struct AnalyticsEvent {
let userId: String
let hadAdditionalData: Bool
let : [String: String]
let hasFeedback: Bool
let feedbackContent: String
}
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